Adding and recording machine.



G. W. DUDLEY.

ADDING AND RECORDING MACHINE.

APPLICATION FILED JULY 2, 1906.

Patented June 7, 1910.

3 QHEBTS-SHEBT 1.

G. W. DUDLEY.

ADDING AND RECORDING MACHINE.

APPLIGATION FILED JULY 2, 1906.

Patented June 7,1910.

3 SHEETS-SHEET 2 mum MMIIIIIIIIIIIIIIIII Inc/6762 0 @6- W 3/ G. W. DUDLEY.

ADDING AND REGORDING MACHINE.

APPLIOATION FILED JULY 2, 1906.

m q, 4 a a v M m n E a 0 4 wm NM WW7 Q M GEORGE WILSON DUDLEY, or S'I'AUNTON,

VIRGINIA, ASSIGNOR TO NUMEROGRAPI-I MANUFACTURING COMPANY, OF CHARLESTON, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

ADDING AND RECORDING MACHINE.

. Specification of Letters Patent.

Patented J une 7, 1910.-

Application filed July 2, 1906. Serial No. 324,450.

, To all whom it may concern:

Be it known that I, GEORGE W. DUDLEY, a

citizen of the 'United States, residing at lowing is a specification.

-' 1 is a side elevation My present invention relates to the general form of adding and recording machine dis closed in an application for Letters Patent of the United States filed by me Apr. 30, 1904, #205776,-in which an adding. mechanism is employed with typewriting or recording mechanism superimposed upon a portion of the adding mechanism, but with the adding disks exposed to view atone side of the machine while the hand operating lever belonging to the adding mechanism is located at the opposite side of the machine. In said machine also I disclose a series of keys for operating the printing mechanism including figure keys, and also a series of figure keys for operating the adding mechanism, said keys being connected in such a manner that when the keys of the adding mechanism are, operated they will operate also those printing keys which effect the printing of the figures to record the figures added, but when the said figure keys of the printing mechanism are operated the keys of the adding mechanism are not operated and only ordinary printing is done.

My present invention relates particularly to the connections between the two sets of keys 2'. e. adding-keys and the printing- -figure-keys, and also to the connections from the adding keys to the adding mechanism whereby overthrow of the adding mechanism will be prevented.

My invention also includes adding mechanism and printing mechanism with keys. for operating the same, said keys having a similarity of touch, that is to say, the adding keys are operated by about the same degree of pressure or manipulation of the fingers as are thekeys of the printing mechanism.

The invention further consists in the features, combination, and arrangement of parts hereinafter described and particularly pointed out in the claims.

In the accompanying drawin s,-Figure o the mac ine. Fig.

2 is a side View of the carrying mechanism belonging to the adding machine, the es oapementfor the adding machine and associated parts. Fig. 3 is a View similar to Fig. 1, showing a train of mechanism of the adding machine in elevation. Fig. 4 is a detail view showing in plan a series of adding wheels, these being similar to those disclosed in the United States Patent of G. IV. and A. L. Dudley Nos. 1/02, 712777. Fig. 5 is a detail view of the hammer trip mechanism.

In carrying out my present invention, I employ in connection with my adding mechanism, printing mechanism of the well known Hammond type. This mechanism is superimposed upon a portion of the adding machine. This adding machine is substantially the same as that disclosedby me in Letters Patent of the United States 712777, November at, 1902.

In the drawing, the Hammond typewriter will be recognized as consisting ofthe three rows of keys, 1, 2, 3, the latter of which are for printing the figures as well as certain letters the paper carriage 4; the ribbon movement 5 and the shuttle mechanis and anvil at 6. v

The keys 7 for operating the adding mechanism are connected to vertical stems 8, pivo'tally connected at 9 to the key levers 10 which are pivoted to the frame at 11. These key levers extend under the ty ewriting machine for which purpose sai typewriting machine is elevated above the base frame 12 of the machine, being supported for instance by the posts 12*. The adding machine keys areconnected with the keys 3 of the typewriting or recording mechanism through the following parts: the l nk 13, the lever 14,

pivoted on the rod 15, the link 16 adjustably'" connected to said lever Hand connected to the lever '17 which is pivoted to the frame at '18 and the-link 19 having a pin and slot connection at 20 with said lever 17 and being pivotally connected at 20 with the lever of the printing or recording figure-key 3.

The connection for operating the adding machine-from the adding keys consists of the key. lever 10, the link 13 and lever 14 justmentioned above, and'arm21 fixed on the shaft 22, journaled'in the frame, the arm "-23 fixed on said shaft, and the rack 24 pivto turn them according to the value of the adding keys which are struck.

The shaft 22 is turned through different degress according to the value of the key operated for which purpose said shaft has nine of the arms 21 fixed thereon, one for each of the digits one to nine, and there is at ,set of the connections 10, 13,14, 16, 17 and 19' above described for each of the adding keys from 1 to 9 and also for the 0 key. The arms 21 are set'on the shaft 22 at different angles as clearly shown in Fig. 1, and they are operated each from a pin 26 on its companion lever 14. These ins on the several levers, however, are axially in line with each other so that they individually engage and. move their corresponding arms 21 sooner or later, according to the angular position of their arms 21. That is to say, for some of the levers 14 more lost motion takes place before its pin 26 strikes the companion arm 21 than in the case of other of the arms. For instance, for the 1 key there will be a maximum amount of lost motion of its lever 14 before the pin 26 thereof strikes the arm 21 belonging to it, and consequently, the connection leading to the adding mechanism will be moved to a minimum degree, while for the 9 key there will be a minimum amount of lost motion of its appropriate lever 14, and consequently the pin 26 will engage the arm 21 early in its movement and actuate the selector or setting mechanism of the adding machine to the maximum extent.

The specific operation of the adding ma chine as a result of the operation of the gear wheel 25 need not be described, as it forms no part of my present invention. This action will however be clear from the ap plication and the Letters Patent above referredto. v

The escapement mechanism of the carriage of the adding machine proper is the same as in the'above mentioned patent, and

application, and it seems only necessary to' point out herein that the means for operating said escapement consists of the universal bar 27 carried in arms 28 pivoted onthe rod or bar 15, one of which arms is shown in dotted lines in Fig. 1 and the other in full lines. Oneof these arms is also shown in fulllines in Fig. 2.

The universal bar carries a series of blocks, one of which is shown at 29 adjustably held thereon by the screws 30, said blocks being in range of the levers 14, one for each block so that when any one of said levers is operated it will strike its corresponding block on'the universal rod 27 and through said rod the escapement of the adding machine will be operated. This escapement mechanism consists-generally of the pawl and ratchet 36, 37, the latter being the shaft when the universal bar or rod is depressed to thus release the escapement. The spring drum is geared to the carriage 45 of the selectors through the gear 46 and rack 47.

In order to prevent overthrow of the adding mechanism under the rapid operation of the machine, I provide the arms 21 withslots 31 for the pins 26 to work in, said pins working against the underside of the portion 21 of said arm in order to operate it for operating the adding mechanism, while the'portion 21 of said arm by engaging the underside of said pin 26 forms a positive connection between the said arm 21 and its lever 14 so that the arm 21 if operated violently will not overthrow and move in advance of the movement of the pin 26 because the portion 21" of said arm will immediately engage the pin 26 when the movement begins.

It will be noticed that the portion or finger 21" of the arm 21 is shorter than the finger or portion 21' of said arm. This is to allow each arm to swing freely with the shaft 22 when said shaft is operated by any of the other arms 21. That is to say, if the shaft is operated by one of the arms 21 the fingers 21 011 all the other arms will swing past their corresponding pins 26 which at this time are at rest, but the arm which is effecting the operation of the shaft will be locked to its lever 14 by its finger 21- and pin 26' so that the movement of the arm 21 to operate the adding mechanism will correspond in degree or extent to that of the lever 14 and the movement of this lever obviously corres onds to the movement of the key with w ich it is connected by means of the link 13 and lever 10, this being a permanent connection. The movement of the key lever is arrested accurately by the stop screw 32.

For the more accurate positionin of the adding selectors, I associate with t e nontent mechanism such as is disclosed in the patent above referred to consisting of a overthrow mechanism just described, de-- segment of a ratchet 33 (corresponding to tension of one of the arms 28' above mentioned. This ratchet will engage the seginent at once upon the selectors arriving at the correct position as a result of the operation of the said gear 25 through the rack and arm 21.

It will be seen that the touch necessary tobe applied by the operator is the same throughout all the keys, 6. e. those of the Hammond machine as well as those of the adding machine.

A's is well known the keys-of the Plainmond machine need only to be depressed and not struck, as in the type-barmachines, because in this machine, the Hammond, the printing is done by releasing an escapement mechanism and setting free a printing hammer A. In my adding mechanism as de scribed inthe said patent above mentioned the keys are likewise simply depressed. In both cases the keys release escapement mechanism. In the one case for the strokeof the printing hammer and in the other for 4 the movement of the selector carriage. Thereis thus similarity of touch throughout the key board,.both as regards the keys for printing or recording, and as regards adding. In both cases the keys are operated by pressure and not by a blow. The operator can therefore use the same touch throughout the key :board.

In Fig. 2 I show carrying mechanism for i the number wheels I) in all substantial re- Patent,

hold this pin drum accurately in position spects like that shown in Fig. 4. of Letters granted to me Apr. 5, 1904, #765340. In my present machine like that therein shown, a pin drum 47 is arranged loosely on a shaft 48, said pin drum operating the connections shown in said figure for the carrying action when the hand lever 48* is returned in the direction of the arrow,

Fig. 1 to normal position. In ,order to and prevent overthrow, a detent lever 49 is used similar 'to that shown in said last named patent and also in my Patent #712777 having a notch at 50 toengage pins 51 on the drum at each half revolution thereof. In the said patents, the detent lever was spring pressed and the holding effect was due to the frictional action of the pin against the wall ofthe notch whichwall was slightly rounded sothat when sufiicient force was applied the detent would. yield and allow the pin drum to turn. In my present construction I have sought to make the holding effectiof the detent positive, for

which purpose the notch therein is provided with a straight wall as a bearing for the pin of the drum, so that the detent lever stud 56 on the hammer.

must be forced down by. positive pressure away from the detent pin before the drum can be turned. For this purpose I provide the detent lever in my present machine with an extension forming a finger 50 adapted to be engagedby a pawl 51. pivoted to the disk 52 which is secured to the said shaft 48 and, which carries the pawl to engage the pins 53* on the disk or head 54 connected with pin drum, all as described in said patents. lVhen the disk 52 rotates in the direction of the arrow the beveled side of the pawl 51 will strike the finger 50and as it may yield in one direction, it will pass said finger but will immediately return to active position under the action of its spring 55 and then upon the rotation of the disk in v the opposite direction to make thepawl engage one of the pins 53 the said pawl 51 with its other side will engage the finger 50 and depress the detent positively to re- U lease the pin drum and this action takes place just before the pawl 53 engages the pin 53* to turn the drum, but up to this time the pin drum has been accurately and firmly held.

It will be seen that as the operator at times strikes the adding keys and at times strikes the printing keys it is most desirable that the touch be uniform. sirable because the adding keys are connected to the printing keys and the connections to the printing devices will thus be operated in a similarmanner whether the adding keys be operated or the fignreprinting keys.

The levers 1% act in a three fold capacity 2'. e, to operate the arms 21 to operate the space frame, and also through said space frame to operate the overthrow detent.

In Fig. 5 I show the means by which the impression hammer is operated. This is precisely the same as is described in the patent of J. B, Hammond, #290,419 granted December 18, 1883. 4 The hammer is held in retracted position by the spring tension of the carriage, and for this purpose a hammer returning arm. or lever 55 engages the The lever 55 carries a pawl 57 which engages with the escapement wheel 58 and as this escapement wheel is under tension of the carriage spring (not shown) the hammer will be held retracted as long as the pawl 57 remains in engagement, with the ratchet wheel, but as soon as it is released therefrom then the hammer will be free to fly forward under the action of its spring 59. necessary to go into the detailsof the means for releasing the pawl. from the escapement wheel, and it is thought sufiicient to say that this is done each time a character-key is at 61, extending at its rear end under the This is also de- It is notthought the typewriter keys, and connections between them comprising the links 13, 16 and 19, and

the levers 10, let and 17 a pin and slot connection between the levers 14 and the arms, and connections between. the shaft 'and the acldin mechanism, substantially as de scribe p 2.111 combination in an adding machine,

adding keys, adding mechanism, a rotary shaft, a series of arms thereon. occupying different angular positions, a series of levers pivoted intermediate of their length and having their rear arms arranged to operate the angularlypositioned arms, a detent and ratchet mechanism and a universal bar 27 under the forward ends of the intermediately pivoted arms, said universal bar being connected with the detent, substantially as described.

In'combination in an adding machine, adding mechanism, adding keys, a shaft 22, connections between the same and the add ing mechanism, arms on said shaft, a series of levers 14 intermediately pivoted and adapted at their rear ends to operate the said arms, an escapement' mechanism for the ing-keys, a member having connections lead-- ing to the adding machine, a series of arms on said member, a series of intermediately pivoted levers having their rear ends arranged to operate the said arms, carriage escapem'ent mechanism operated by the front portion'of said levers, and connections'between said levers and the. figure-printing keys of the recording mechanism, substantially as described.

. 5. In combination. in an adding machine,

adding disks, carrying mechanism, means for operating the carryingmechanism, a detent for holding the operating means against overthrow, and means for positively releas-v ing the. said detent means, substantially as described. v

6. In combination in an adding machine, adding disks, carrying mechanism, a pin drum for operatin the carrying mechanism, a detent' for t e pin drum, a yielding pawl forengaging the detent, said pawl. bemg rigid in one direction to operate thedetent positivel and a rotary carrierzfor the said pawl, su stantially as described.

ln'testlmony whereof, I afiix my signature in presence of two witnesses.

GEORGE WILSON DUDLEY. -Witnesses:

I MICHAEL LUBER,

JOHN H. TRIMBLE. 

